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From 8df2f9c9f5621578e6313694eafa79453af0ca85 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Mon, 14 Mar 2016 16:51:24 -0400
Subject: [PATCH 0922/1110] drm/amdgpu: add an interface to get gfx constants
from atombios
Fetch the values from atom rather than hardcoding them in the
driver.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 30 ++++++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h | 2 ++
2 files changed, 32 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
index 84b0ce3..6830ed4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
@@ -699,6 +699,36 @@ int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev)
return ret;
}
+union gfx_info {
+ ATOM_GFX_INFO_V2_1 info;
+};
+
+int amdgpu_atombios_get_gfx_info(struct amdgpu_device *adev)
+{
+ struct amdgpu_mode_info *mode_info = &adev->mode_info;
+ int index = GetIndexIntoMasterTable(DATA, GFX_Info);
+ uint8_t frev, crev;
+ uint16_t data_offset;
+ int ret = -EINVAL;
+
+ if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
+ &frev, &crev, &data_offset)) {
+ union gfx_info *gfx_info = (union gfx_info *)
+ (mode_info->atom_context->bios + data_offset);
+
+ adev->gfx.config.max_shader_engines = gfx_info->info.max_shader_engines;
+ adev->gfx.config.max_tile_pipes = gfx_info->info.max_tile_pipes;
+ adev->gfx.config.max_cu_per_sh = gfx_info->info.max_cu_per_sh;
+ adev->gfx.config.max_sh_per_se = gfx_info->info.max_sh_per_se;
+ adev->gfx.config.max_backends_per_se = gfx_info->info.max_backends_per_se;
+ adev->gfx.config.max_texture_channel_caches =
+ gfx_info->info.max_texture_channel_caches;
+
+ ret = 0;
+ }
+ return ret;
+}
+
union igp_info {
struct _ATOM_INTEGRATED_SYSTEM_INFO info;
struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h
index 9e14420..8c2e696 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h
@@ -144,6 +144,8 @@ bool amdgpu_atombios_get_connector_info_from_object_table(struct amdgpu_device *
int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev);
+int amdgpu_atombios_get_gfx_info(struct amdgpu_device *adev);
+
bool amdgpu_atombios_get_asic_ss_info(struct amdgpu_device *adev,
struct amdgpu_atom_ss *ss,
int id, u32 clock);
--
2.7.4
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